AT512391B1 - Noise protection device - Google Patents

Abstract

The invention relates to a noise protection device (1) for arrangement on a traffic route comprising at least one wall element (8) with a wall element longitudinal extent (28a), the wall element (8) being arranged on at least one base element (7) having a base element longitudinal extent (12) in the direction of the wall element longitudinal extent (28a), wherein the base element (7) has a first end face (14) and a second end face (15), and the two end faces (14, 15) along the base element longitudinal extent ( 12) are opposite each other, wherein the first end face (14) of the base element (7) with a first rounding (16) and the second end face (15) of the base element (7) are formed with a second rounding (17), wherein the two Curves (16, 17) in the direction perpendicular to the base element longitudinal extent (12), wherein further the first rounding (16) has a concave course and the second rounding (17) has a convex course having.

Description

«TREATMENT FOCUS AT 512 391 B1 2013-08-15

The invention relates to a noise protection device for placement on a traffic route comprising at least one wall element with a wall element longitudinal extension, wherein the wall element is arranged on at least one base element having a base element longitudinal extent in the direction of the wall element longitudinal extent, wherein the base element a first end surfaces and a second end surface, and the two end faces along the base element longitudinal extent are opposite to each other, wherein the first end face of the base element are formed with a first rounding and the second end face of the base element with a second rounding, wherein the two curves in Direction perpendicular to the base element longitudinal extent, and a noise barrier system comprising a plurality of longitudinally successively arranged noise protection devices.

Noise protection devices in the form of wall elements are used on or on roads for noise protection. Usually, these protective devices are fixedly placed on or next to the traffic route, and a corresponding foundation is made for this purpose, on which or in which the stands for the noise barriers themselves, which are normally made of steel as I or H beams, are anchored become.

AT 7 753 U1 describes a soundproofing element for use in railway construction. To insulate the sound generated when rolling the wheels on the tracks is provided that on an attachable to the ground, a footprint forming base element an insulating element is arranged, which preferably extends vertically in the height and with respect to the base element movable, preferably folded down , and / or is removably stored.

From DE 298 05 730 U1 a sound barrier for traffic routes with a supported on the ground support structure are fixed to the prefabricated, sound-absorbing wall elements known, the support structure comprises a plurality of prefabricated, vertical frame into which the wall elements are used, and wherein the wall elements consist at least partially of recycled material and / or immobilized waste.

DE 85 28 305 U1 describes a kit for the preparation of unsupported noise barriers, the individual kit elements consist of noise protection wall elements having rear plates on which Dämmstofflagen are arranged, which are covered with perforated plates, wherein at least one lateral end of rear plates having a hinge-like design with hinge axis, which is formed cooperable with the neighboring plate.

From AT 10 131 U1 a mobile noise barrier is known, which consists of a concrete base, a releasably connected thereto noise protection element and a cross strut, which is releasably connected to both the concrete base and with the noise protection element consists. The noise protection element consists of highly absorbent noise protection panels in a steel construction and is mounted on the concrete base and fixed by means of cross brace.

From DE 44 19 886 A1 discloses a soundproofing coating for sound-emitting and / or sound-reflecting surfaces, in particular for railway superstructure, known, wherein the soundproofing coating comprises a rubber granules, which is solidified by means of a preferably elastically deformable plastic wherein the coating additionally comprises a relatively high, at least partially open-pore air pore fraction.

From DE 24 07 281 A1 a sound insulating material is known, in which two contacting layers are provided, each of which contains numerous inorganic particles, which are thinly covered with an adhesive and connected thereto, with holes between the adjacent Particles are formed. The particle sizes deviate from one another in each layer such that substantially all particles of a layer are more than twice larger than the maximum size of the particles in an adjoining layer Layer. All particles in all layers are essentially in the size range between 0.1 mm to 15 mm.

WO 98/37276 A1 describes a soundproofing device for reducing the airborne sound propagation, comprising a track system and extending in track longitudinally and elastically deformable low-noise protective wall made of rubber or plastic, wherein the arranged at a distance from the track low-noise protective wall on its side facing the track side (Inside) has a profiling that extends substantially over the entire wall height, while their side facing away from the track (outside) is designed mostly flat surface. The inside is at an angle α and the outside at an angle ß, in each case with respect to the track perpendicular to the track inclined, the angle ß is greater than the angle α. The profiling of the inside is a system of lips, with the lips at an angle γ, relative to the track horizontal, to the track floor show. The low-noise protective wall is at the top, where the inside and the outside converge towards each other, closed by a lip inclined towards the track, which points at an angle δ, with respect to the track perpendicular, upwards. Furthermore, the low-noise protective wall has at least one cavity running in the longitudinal direction of the track.

From AT 8 619 U1 a fastening mechanism is known, which allows the use of a soundproof wall without foundation. The attachment mechanism consists of a simple, easy-to-install and dismantle profile that can be connected to a rail. The simple assembly and disassembly is done by applying force to a mounting plate. A correspondingly bent mounting bracket holds the soundproofing wall at the exact horizontal distance to the rail and at the same time stabilizes the right-angled position to the track. A locking plate connects by snapping the soundproof wall with the attachment mechanism. The mounting bracket is covered with rubber or other elastic material for the protection and vibration damping of the rail and threshold. The offset of the mounting bracket during the transition from the threshold to the ballast bed downwards serves to ensure that it is embedded in the ballast and that the weight load of the soundproofing wall is entirely taken over by the ballast bedding.

From AT 9,954 U1 a noise barrier for shielding the noise is known, which occurs by driving on railroad tracks, wherein the height of both sides of a track arranged noise protection wall is about 0.5 m to 2 m. The distance between two - in a normal to a longitudinal direction of the track opposite each other - noise barriers is only in a range of about 3 to 5% greater than the width of a clearance gauge of the track, wherein the angle of the track facing side of the noise barrier in one area is located at about -15 to +15 ° to the vertical and at a lower, resting on the ballast of the track end of the noise barrier on a side facing away from the track a nose with a side facing away from said side remote nose end is provided with a horizontal one Angle of about 10 ° to about 40 °.

From AT 508 575 B1, a protective device for arrangement on a traffic route is known, comprising at least one wall element, wherein the wall element is arranged on at least one base element, which can be arranged without foundation on or adjacent to the traffic route, wherein the base element can be arranged on a ballast bed of a track and is not anchored in the ground, and the base element has at least one connecting element, with which the base element with a threshold and / or a rail of a track is connectable.

EP 0 543 143 A2 describes a boundary stone with a base part extending in a laying plane, whose first end, to which a further boundary stone can be placed, is provided with a circular bulge, and its opposite second end, to which also a Another turf can be applied, with a circular indentation of the same radius as the bulge is provided, wherein a perpendicular to the bottom part survey is provided, which in the region of the first end in a circular psttüteff AT 512 391 B1 2013-08 The peripheral circle center coincides with the circle center of the circumferential circle of the larger diameter bulge of the bottom part, and wherein the elevation at the second end, seen from the first towards the second end, extends beyond the indentation in this fort and ends in an edge , which has a generatrix, by the measure of R Adius of the circumferential circle of the rounded edge at the first end of the circle center of the indentation is set back.

It is the object of the present invention to simplify the construction of noise protection devices for track distances. In particular, it is the object of the invention to provide an improved noise protection device.

This object is achieved independently by the aforementioned noise protection device and by the noise protection wall system mentioned above, wherein in the noise protection device, the first rounding of the first end face has a concave profile and the second rounding of the second end face has a convex profile, and, the noise barrier system is formed from the noise protection devices.

The advantage here is that due to the trained curves curve radii can be made easier. In addition, it is achieved that with this construction, the noise protection wall system higher attacking lateral forces withstand, since the forces are distributed by the adjoining noise protection devices on several noise protection devices, with a lateral sliding apart of the noise protection devices assembled condition of the noise barrier system can be prevented. In other words, the lateral mobility of the individual noise protection devices in the noise protection wall system is reduced, so that no connection of the noise protection device to the rails or the threshold can be dispensed with, although these noise protection devices are set up at a very short distance from the rail, preferably without foundation, ie. that they are placed only on a ballast bed or possibly on a solid roadway. It is thus possible to approach very close to the sound source with the noise protection wall system, whereby the height of the noise protection devices can be reduced. It is thus also a higher security in the middle region between the tracks of two directions of orientation fixing the noise protection devices possible. By avoiding mechanical connections between the noise protection devices and the rails or sleepers, a simplified construction of the noise protection wall system is achieved.

Characterized in that the first rounding has a concave course and the second rounding has a convex profile, the base elements or the entire soundproofing elements can all have the same shape, whereby on the one hand the manufacture of the elements and on the other hand their assembly are simplified. In addition, it is thus possible to produce tighter curve radii with greater stability of the soundproof wall.

It can further be provided that the wall element and the base element are formed integrally with each other. It can thus be significantly reduced assembly time of the sound barrier system. Conversely, however, the dismantling can be shortened or simplified by simply lifting the soundproofing device with a crane, which in particular benefits are achieved during maintenance work on the track or during mining work after train accidents.

According to another embodiment, it is provided that the wall element and / or the base element consist of a lightweight concrete with pores. It is thus possible monolithic form these sound insulation elements, so that can be dispensed with a complex structure to achieve the sound insulation effect. In addition, it is thus possible in a simple manner, the soundproofing behavior by appropriate selection of the pore size or by providing a pore size spectrum or by the number of pores, i. easy to adjust the entire pore volume.

But it can also be provided that the wall element has a filling of rock wool or rubber granules. In particular, this wall element is referred to as so-called 3/4 isterreidBsdses AT 512 391 B1 2013-08-15

Field element used. It is thus provided a wall element that has a high weather resistance, which require no special treatment to improve the weather resistance and low maintenance can be performed, but at the same time a relatively high reduction of noise pollution is achieved by residents on the railway line.

To further reduce the noise pollution can be provided that is arranged on and / or in the wall element, a blocking element against sound waves. It is possible in this way to keep the total weight with improved sound reduction low.

According to a variant of the noise protection wall system is provided that the noise protection devices are positively connected with each other. It is thus possible to dispense with an additional non-positive connection, for example by means of retaining clips or screws. On the one hand, the assembly and disassembly of the noise protection wall system is in turn simplified by an exclusively positive connection, on the other hand, the production of the noise protection device is simpler, as can be dispensed to Eilegeteile, such as screw or the like., For producing a positive connection between the noise protection devices.

To reduce the risk that the noise protection device due to (micro) movements in the ballast bed in terms of their location, in particular with respect to the distance to the rails changes, it is provided that only the first and / or the last noise protection device a plurality of successively arranged noise protection devices has or have at least one connecting element, with which the noise protection device with a threshold and / or a rail of a track is connectable. Again, it is advantageous that this connection is limited to a maximum of two noise protection devices, whereby the assembly and disassembly of the noise barrier system can be further simplified. The positional stability of the further noise protection devices between the two end members is achieved by the positive connection of the individual noise protection devices.

For a better understanding of the invention, this will be explained in more detail with reference to the following figures.

[0033] [0034] [0034] [0034]

Each shows in a schematically simplified representation:

1 shows the formation of a soundproofing device on a railroad track in front view in the direction of the rail traffic route.

2 shows a soundproofing device in oblique view;

FIG. 3 shows the soundproofing device according to FIG. 2 in plan view; FIG.

4 shows a first end element for the soundproofing device according to FIG. 4 in oblique view;

5 shows the end element of Figure 4 in plan view ..;

FIG. 6 a further end element for the soundproofing device according to FIG. 4 in an oblique view; FIG.

7 shows a detail of a noise protection wall system with several sound insulation devices according to FIGS 2 to 6 in an oblique view with rail connection ..;

8 shows the sound barrier wall system according to FIG. 7 in plan view; FIG.

9 shows a section of a further soundproofing wall system with several soundproofing devices according to a variant in an oblique view with rail connection;

FIG. 10 shows the sound barrier wall system according to FIG. 9 in plan view; FIG. 4.24

Figure 11: Patent Office Figure 13 Figure 13 Figure 14 Figure 14 [0041] Figure 16 [0042] Figure 17 [0043] FIG. FIG. 19 AT 512 391 B1 2013-08-15 the soundproof wall system according to FIG. 9 in front view; FIG. an embodiment of a fastening element for fastening a wall element on a base element of a soundproofing device in front view; the fastener of Figure 12 in side view. the fastener of Figure 12 in rear view. the fastener of Figure 12 in plan view. a rail connection element for connecting a soundproofing device to a rail in plan view; the rail connection element of Figure 16 in side view. the rail connection element of Figure 16 in an oblique view. a variant of a base element of the soundproofing device in plan view; 20 shows a further embodiment of a base element of the soundproofing device in plan view.

By way of introduction, it should be noted that in the differently described embodiments, the same parts are provided with the same reference numerals or the same component names, wherein the disclosures contained in the entire description can be mutatis mutandis transferred to like parts with the same reference numerals or the same component names. Also, the location information chosen in the description, such as top, bottom, side, etc. related to the immediately described and illustrated figure and are to be transferred to the new situation mutatis mutandis when a change in position.

In Fig. 1, two variants of a soundproofing device 1 are shown which are very similar to each other and which are shown in more detail in Figs. 2 to 8 and 9 and 10 respectively. In particular, these noise protection devices 1 serve as noise protection walls in the area of track systems 2, as shown in FIG. 1, the sound protection device 1 has the advantage that it can be brought very close to track strands 3, so that in the range of wheels 4 of rail vehicles 5 and The track strands 3 arising noise can be effectively insulated even at low height of the soundproofing device 1 or can be deflected into a no longer disturbing area.

These two soundproofing devices 1 of FIG. 1 are of course arranged so that an unhindered operation of rail vehicles 5 is made possible, that is, that they are arranged at a sufficient distance 6, 7 to the moving rail vehicles 5. Due to the construction of the noise protection devices 1, this distance 6, 7 to the two noise protection devices 1 between 0.5 m and 1.2 m, in particular between 0.7 m and 1 m, amount, so so the two noise protection devices 1 very close to the Sound source can be attached. The distance 6, 7 is measured between the edge of the outermost, the rails facing edge of the noise protection devices 1 and the center of the adjacent rail.

2 and 3, the first embodiment of the protective device 1 according to FIG. 1, a so-called center element, is shown, which is arranged in particular at least approximately centrally between two track sections.

The noise protection device 1 comprises or consists of a (em) base element 7 and at least one (em) wall element 8, wherein a plurality of wall elements 8 can be used, for example two superimposed. Of course, also a different number of wall elements 8, which are arranged one above the other, are provided in the noise protection device 1.

In such a wall element 4, for example, a length of about 3 m, a width 5/24

from about 12 cm to about 20 cm and a height of about 80 cm to about 100 cm, and this information is not limiting to understand.

This noise protection device 1 may consist of several parts, in particular the base element 7 and the wall element 8 may represent separate components of the noise protection device 1.

The base element 7 is preferably formed as a concrete base in the form of a sheet-like element as shown in FIGS. 2 and 3. For example, such a base element 3 have a width of about 1.2 m, a length of about 3 m and a height of about 0.26 m, these embodiments have only exemplary character.

Preferably, a surface 9 is planar and optionally formed with a slope in the direction of longitudinal side end faces 10, 11, which extend in the direction of a base element longitudinal extent 12. The gradient can be only a few degrees, for example, between 0.5 ° and 3 °, to drain water.

But it is also possible that this base element 3 is formed so that in an intermediate region 13, an at least approximately planar surface is formed, on which the or the wall element (s) 8 are arranged, wherein the width of this surface in the direction on the tracks at least approximately equal to the width of the wall elements 8 or may be greater.

Preferably, however, the base element 7 is formed integrally with the wall element 8, that is produced in the production with the wall element 8 as a part.

The underside of the base element 3 is preferably made flat in order to achieve a larger footprint and thus a higher stability of the noise protection device 1.

After the base element 7 is arranged on a ballast bed 14 (FIG. 1) of a track system 2, it can be advantageous if an elastomer element, for example a rubber mat, or a fleece is arranged on the underside of the base element 7, into which the gravel grains can be partially pressed. This elastomer element or fleece can be glued to the underside of the base element 7, it is also possible that it is inserted into the formwork for the preparation of the base element 7 and thus already connected to the concrete base during manufacture.

The base element 7 has a first end face 14 and a second end face, which are formed opposite to each other along the base element longitudinal extension 12. As is apparent from FIGS. 2 and 3, the first end faces 14 are formed with a first rounding 16 and the second end face with a second rounding 17, wherein the two curves extend in the direction perpendicular to the base element longitudinal extent 12. The first rounding has a first radius of curvature 18 and the second rounding 17 a second radius of curvature 19, wherein in this embodiment the two radii of curvature 18, 19 are parallel to the plane of the surface 9, as can be seen in FIGS. 2 and 3.

The two radii of curvature 18, 19 can be of different sizes, but in the preferred embodiment they have at least approximately the same value, that is, they are at least approximately on.

It should be noted at this point that with "at least approximately " in the context of the description is meant that deviations within the manufacturing tolerances are allowed. A different meaning is mentioned separately.

The values of the two radii of curvature 18, 19 can be selected from a range of 0.75 m to 1.5 m, in particular from a range of 0.85 m to 1.2 m. For example, the two radii of curvature 18, 19 can have a size of 1 m.

With the curves 16, 17 it is achieved that the base element element 7 in a noise

  protective wall system 20, which results from the juxtaposition of a plurality of base elements 7 and, for example, in Fig. 7 is shown in fragmentary manner, in the direction of the base element longitudinal extent 12 a certain mobility Have in the horizontal direction, so that in particular in the curved region of rails a better replica of the curve radius is made possible. However, due to the curves 16, 17, this mobility is not so great that the base elements 7 come out of mutual engagement, so that a stabilization of the noise protection wall system 20 in the longitudinal direction thereof is achieved as well. This in turn achieves the advantage that a connection of the base elements 7 to the rails or sleepers is not required, since the base elements 7 of the noise protection wall system 20 stabilize themselves essentially with respect to their relative position to one another.

The two curves 16, 17 of the end faces 14, 15 may have different radii of curvature 18, 19. However, these two curves preferably have at least approximately the same radii of curvature 18, 19.

In the embodiment variant shown in FIGS. 2 and 3, the first rounding 17 of the first end face 14 is curved inward, that is to say concave, and the second rounding 18 of the second end face 15 is curved outward, that is to say convex. In the noise protection wall system 20 is formed by the juxtaposition of noise protection devices 1 a form fit by the convex curve 17 of a first noise protection device 1 engages in the concave curve 16 of a second adjoining noise protection device 1.

For arranging the wall element 8 on the base element 7, at least two anchor plates can be provided, which are arranged eccentrically and at a distance from the two end faces 5, as is known in the AT 508 575 B1, to which reference is expressly made in this regard. and thus belongs to the content of this description to this extent.

In the preferred embodiment of this embodiment variant shown in FIGS. 2 and 3, however, the base element 7 is formed integrally with the wall element 8. In particular, these two elements are made of concrete, preferably one, in particular porous, lightweight concrete. But it is also possible that the base member 7 is made of a non-porous concrete to which the wall element 8 is poured from lightweight concrete, including corresponding formwork are used to obtain a one-piece noise protection device 1.

It should be noted that a lightweight concrete concrete with a maximum density of 2500 kg / m3 is understood.

The lightweight concrete may have pores of a size which is selected from a range of 2 mm to 12 mm, in particular from a range of 4 mm to 8 mm. It is also the formation of pores of different sizes of advantage, since thus a wider range of sound frequencies can be covered.

However, it is also possible to produce the wall element 8 of a different material, as will be described in more detail below.

To offset this noise protection device 8 lifting lugs 21 may be arranged on the top of the wall element, in particular poured into the wall element 8, be.

At least some of the edges of the noise protection device 1 of this or all variant (s) can be made beveled. Likewise, the transition between the wall element 8 and the base element 7 can be made rounded.

4 and 5 and 6 variants of the noise protection devices 1 are shown in an oblique view and plan view. 4 and 5, a first end member 22 and FIG. 6, a second end member 23 of the noise barrier system 20, as shown in Fig. 7.

In contrast to the embodiment of the noise protection device 1 according to FIGS. 2 and 3, these end elements 22 and 23 are provided with wall elements 8, at least 7/24

feirrelösse-ts patetäfst AT 512 391 B1 2013-08-15 have an oblique course. Accordingly, the height above the base element 7 of the wall element 8 of the embodiment of the noise protection device 1 according to FIGS. 4 and 5, starting from the end face 15 in the direction of the end face 14 and those of the embodiment of FIG. 8 in this direction from, at two variants oblique areas of the wall elements 8 can pass into a horizontally extending portion of the top, as shown in Figs. 4 to 6.

It should be noted, however, that a separate embodiment of the end members 22, 23 Although advantageous, but for these end elements 22, 23 and the noise protection device 1 according to FIGS. 2 and 3 can be used.

After these noise protection devices 1 form the end elements 22, 23 of the noise protection wall system 20, the end face 15 of the base element 7 of the noise protection device 1 according to FIGS. 4 and 5 and the end face 14 of the base element 7 of the noise protection device 1 of FIG. 6 straight, i. without curves, executed, since no further noise protection device 1 positively abuts against these end faces 14, 15. The execution of these end faces 14, 15 with the above-described curves 16, 17 is possible.

It is also possible that these end elements 22, 23 are made shorter than the noise protection device 1 according to FIGS. 2 and 3.

In addition, these end elements 22, 23 as the noise protection device 1 according to FIGS. 2 and 3 may be executed, in particular with regard to the choice of material for the base element 7 and the wall element eighth

Figs. 7 and 8 show the composite of several noise protection devices 1 noise protection wall system 20 in an oblique view and plan view. In particular, the form-fitting connection of the individual noise protection devices 1 can be seen from these figures.

Although only two noise protection devices 1 according to FIGS. 2 and 3 and the end element 22 can be seen in FIGS. 7 and 8, the number of noise protection devices 1 depends on the length of the route that is equipped with these noise protection devices 1 should, so that the representation in FIGS. 7 and 8 is not to be understood as limiting. In addition, the end element 23 according to FIG. 6 can also be arranged on the left side in FIGS.

The noise protection devices 1 between the two end members 22 and 23 are not connected to the track rope 3. They are also not connected to the thresholds, but are unfounded on the ballast bed, not shown. Only the two end elements 22, 23 can preferably be connected to the track rope 3 in order to fix the relative position of the noise protection wall system 20 to the track rope 3. A fixation of the further noise protection devices 1 between the end members 22, 23 is not required due to the positive connection between the noise protection devices 1.

The connection of the end elements 22, 23 with the track strand 3 - alternatively, these end elements 22, 23 may also be connected to a respective threshold - via a respective connecting element 24. For connection of the connecting element 24 to the end member 22 and 23 can These can be provided with a coupling element 25 or 26 (see also FIGS. 4 and 6). In the simplest case, these coupling elements 25, 26 are designed as metal strips on which the connecting element 24 is screwed. The coupling elements 25, 26 may be attached to the surface of the base element 7, for example with screws. Preferably, however, these are inserted into the concrete body of the base element and in particular potted with this and anchored in this, for example with claws, round steel bars, flat steel tongues, etc. These coupling elements 25, 26 are inserted into the mold for the preparation of the base element before this with the Concrete is poured out.

But there are also other coupling elements 25, 26 used with which the connection can be made between the connecting element 24 and the noise protection device. Optionally, the coupling elements 25, 26 can be omitted and the connecting element 24 can be directly connected to the noise protection device 1, in particular screwed.

9 to 11 that variant of the noise protection device 1 according to Fig. I is shown, which is arranged in the side regions of a track, that is not between two tracks, i. E. the so-called field element. Again, several noise protection devices 1 form the noise protection wall system 20, wherein also in this embodiment, the two end elements 22, 23 (in Figs. 9 to 11, only the end member 22 is shown) arranged and in particular can be connected to the connecting element 24 to the track 3. Reference should therefore be made to the above statements.

The base element 7 is preferably cast from concrete and designed as a flat element, but may have a smaller width than the base element 7 of the embodiment of FIGS. 2 and 3. Preferably, this width of the top is dimensioned such that in addition to Wall elements 8 a walkway with a width of about 0.75 m can be formed.

In principle, it is possible that in this embodiment of the noise protection device 1, the base element 7 is formed integrally with the wall element 8. But preferred is the separate version, so that the wall elements, if necessary, can be easily removed, but the new placement is determined by the remaining base element 7, so that the re-installation is easier.

Also, this base member 3 may have the anchor plates as described above to pass over them the wall members 8, i. to fix the brackets for this purpose, the latter are not arranged in a central region, but in the region of one of the longitudinal side edges 27, 28, depending on whether the wall element 8 are arranged right or left. The longitudinal side edges 27, 28 extend in the direction of a wall element longitudinal extent 28a.

However, a variant is preferred in which the wall element 8 is attached laterally to the base element 7 via a carrier element 29, which is better seen in FIGS. 12 to 15. With this support member 29, a holding member 30 is connected, which serves to support the wall elements 8. The holding element 30 is designed in particular as H-profile carrier, so that the wall elements 8 can be inserted into this without further connecting elements. Of course, if necessary, the wall elements 30 can be connected to the carrier element mechanically and / or positively.

The carrier element is connected to a side surface 31 of the base element 7 with this in particular mechanically, for example screwed. This side surface is chamfered and jumps inwards, as shown in FIGS. 9 and 11 can be seen. By this obliquely with respect to the surface of the base member 7 extending side surface 31 a better grip of the support member 29 is achieved, in particular with regard to the suction effect and the thrust effect of a passing train.

The track surface 3 facing side surface 32 is formed starting from the top of the base element at least partially beveled. By this bevel is achieved that the base element 7, taking into account the clearance of the rail vehicle (see Fig. 1) can be moved closer to the track 3 strand. It is thus a more efficient sound insulation despite low wall height, this can for example be between 0.7 m and 1.2 m, in particular between 0.8 m and 1 m, the wall element 8 achieved.

The base element 7 of this variant of the noise protection device 1 thus preferably has a cross section in the form of an irregular pentagon, as can be seen from FIG. II.

This base element 7 may also have the lifting eyes 21. 24.9

With regard to the curves 16, 17 of the end faces 14, 15 of the base element 7, the end elements 22, 23, reference is made to the above explanations.

The wall element 4 itself may be formed from concrete, a rubber granulate / concrete mixture or a composite element consisting of two lateral cover walls with interposed rubber granules or bonded with a binder rubber granules. There is also the possibility that, to improve the acoustic effect on the side surfaces, in particular those surfaces which face the traffic route, commercially available acoustic nonwovens are arranged.

There is also the possibility that the wall element 4 is entirely formed of a plastic or a hard elastomer or the like.

If a rubber particle / concrete or rubber particles / plastic particles / plastic binder mixture is used, the proportion of rubber particles in this mixture may be selected from a range with a lower limit of 10 vol .-% and an upper limit of 70 vol or from an area with a lower limit of 20% by volume and an upper limit of 65% by volume or from an area with a lower limit of 25% by volume and an upper limit of 55% by volume .-%.

If appropriate, a binder for plastics or the like may also be added to the rubber particle / concrete mixture. The proportion of the plastic binder in both variants may range between 5% by weight and 25% by weight, in particular between 10% by weight and 15% by weight. As plastic particles, e.g. Particles of PE, PP, PTFE, PVC, etc., especially recycled materials used. Optionally, the rubber particle / plastic particle / plastic binder mixture may also comprise a hydraulic binder, such as e.g. Cement, included.

Furthermore, there is a possibility that an average grain size of these rubber particles is selected from a range having a lower limit of 0.4 mm and an upper limit of 4 mm and a range having a lower limit of 1 mm and a upper limit of 3.5 mm or from a range with a lower limit of 1.5 mm and an upper limit of 3 mm.

In the case of a filled with rubber granules wall element 4, this rubber granulate may have a particle size between 0.5 mm and 4 mm. It proves to be an advantage if different particle sizes of rubber granulate are arranged in a wall element 4, for example particle sizes of 0.5 mm and 2.5 mm and 4 mm, in order to achieve different degrees of filling and a different acoustic behavior. It is possible that cavities are formed between the individual rubber particles, wherein a void fraction between 5 vol .-%, and 30 vol .-%, based on the total occupied by the rubber granules volume may amount. About these cavities, a reduction of the noise level of the side facing away from the traffic is also achieved.

In general, the rubber particles can be provided in the context of the invention with a conventional plastic binder, wherein the proportion between 5 wt .-% and 15 wt .-% may be. Preferably, a polyurethane adhesive is used.

Cement or concrete can in turn be used as the binder, although other binders are also possible in order to obtain a self-supporting wall element 8 produced from a rubber granulate.

With regard to the particle sizes of the rubber granules, it is advantageous if they are also used in the rubber particles / concrete mixture.

In addition, there is the possibility that the wall element 8 is of a different construction, that is to say, for example, of wood-based materials, wherein these wood-based materials can again be embodied as composite materials, for example with a wooden battening on the two side walls, that is to say those walls which are adjacent to the traffic route. and are facing away, and in between an acoustic filling or a noise-reducing filling of a 10/24

Merreöiise-e; pitesSäsnt AT 512 391 B1 2013-08-15 insulation material or the like can be arranged.

In the case of filled with rubber granulate wall elements 8, there is the possibility that they are also cast, for example, an elastomer, in particular a hard elastomer, or concrete, in which case a corresponding recess is provided between the two side walls, the subsequent filled with rubber granules.

A preferred embodiment of the wall element 8 provides rock wool as a filling for the cassettes.

It is also possible that in or on the wall element 8, a blocking element is arranged against sound waves, for example of metal, plastic or concrete.

It should be noted that even in the embodiment of the noise protection device 1 according to Figures 2 and 3, so the center element, such a wall element 8 instead of the one-piece wall element 8 described therein can be arranged, although this is not the preferred embodiment of this noise protection device 1 is.

The wall elements 8 are preferably arranged on the base elements 7, that they overlap two adjoining base elements 7, whereby the composite within the noise barrier system 20 can be improved. There is also the possibility that the base element 7 has a length in the direction of the track extension, which corresponds at least approximately to the length of the wall elements 8 in the same direction.

For the sake of completeness, it should be noted that the two end elements 22, 23 are shorter than the remaining noise protection devices 1.

If necessary, there is also the possibility that the wall element 8 is mechanically connected to the base element 7.

The base element 7 is preferably not anchored in the ground, so is fundamentally on a ballast bed.

In FIGS. 12 to 15, the carrier element 29 is shown in different views. This support element 29 consists in particular of a metallic material, preferably of steel. An outer edge 33, which is repellent from the wall element 8 (for example, FIG. 10), is designed to be round, at least in regions, this shape not being to be understood as limiting. Rather, angular embodiments, etc., can be used.

In essence, the support member is divided into a lower portion 34 and an upper portion 35. The upper portion 35 forms a bearing surface 36 for the support member 30, so for example, the H-profile support described above. This contact surface 36 is aligned with its longitudinal extent to the installed state at least approximately vertically.

The lower region 34 in turn has a connecting surface 37, via which the carrier element 29 is connected to the base element 7, in particular screwed to the side surface 31 described above. For this purpose, this connection surface 37 may have corresponding openings 38.

The connecting surface 37 is arranged at an angle 39 to the vertical, as can be seen from Fig. 13, so that the connecting surface 37 abuts at least approximately planar surface on the side surface 31 of the base element 7. The angle 39 may be selected from a range of 120 ° to 180 °. Accordingly, the side surface 31 is inclined at least approximately at the corresponding angle.

A cover plate 40 can be provided on the upper side of the carrier element 29 with which the open-top end of the holding element 30 can be covered (for example, Fig. 10).

But there is also the possibility that the carrier element 29 itself forms the holding element 30 for the wall element 8. In this embodiment, the contact surface 36 forms the central web of the H-shaped cross-section. Rearward are two contact surfaces 41, 42 11/24

MerrecNsche ;; piiesSasnt AT 512 391 B1 2013-08-15 formed, which may be formed by a vertical leg 43. Between the lower portion 34 and the upper portion 33 bearing surface 44, 45 are formed, which extend at least approximately in the installed state of the support member 29 in the horizontal direction and form a support for the wall element 8. The wall element 8 can thus preferably be clamped between one of the support surfaces 44, 45 and the cover plate 40. After insertion of the wall elements 8 into the carrier element 29, the area open to the rear can be closed with a further, in particular plate-shaped, cover element 46 (FIG. 9), so that again an H-shaped cross section results in plan view.

The carrier element 29 can also be used as part of the earthing of the noise protection device 1.

16 to 18 show the connecting element 24, with which the end elements 22 and 23 are connected to the strand 3 (Fig. 11), in different views.

The connecting element 24 is designed in particular as a clamp and consists essentially of two parts (apart from the illustrated screw connection of these two parts), namely a clamping element 47 and a connecting element 48.

Via the connecting element 48, the connecting element 29 is connected to the base element 7. For this purpose, this connection element 48 may be formed at the rear end at least approximately L-shaped with an at least approximately vertically oriented leg 49.

The clamping element 47 is at least approximately bow-shaped or at least approximately slidably formed and has at its front end hook-shaped end portions 50, 51 which engage around the track 3 of the underside and are hooked thereto, as for example. from FIGS. 7, 9 and 11 can be seen. In order to achieve the clamping effect, the front end of the connecting element 48 is formed with an approximately U-shaped cross section in side view and thus forms a clamping element part 52. The clamping element part 52 has at least one contact element 53, for example a rubber damper, on its front at least approximately vertical leg. on, which rests in the installed state in the area above the rail foot on the track rope 3 and thus clamps this.

Preferably, this connection is designed so that a certain relative movement between the base element 7 and rail is made possible.

In Fig. 19, a further embodiment of the noise protection device 1 is shown as a central element in the noise protection wall system 20 in plan view. This in turn comprises the base element 7 and the wall element 8. In contrast to the above embodiments, in this embodiment, a base element 7 exclusively convex curves 17 and the adjoining base element 7 exclusively concave curves 16, wherein the radii of curvature turn with respect to their value in all Base element 7 are preferably the same size.

Fig. 20 shows a variant of the noise protection device 1 in the noise protection wall system 20 in side view with the base element 7 and the wall element 8. In this embodiment, the curves 16, 17 are not horizontal but vertical.

It should be noted that, although in the illustrations in Figs. 19 and 20, the noise protection devices 1 are not shown adjacent to each other, they are arranged as in all variants of the noise protection devices 1 frontally adjacent to each other in the noise barrier system 20.

In another embodiment, not shown, there is the possibility that the base element 7 has the curves 16, 17 extending both in the horizontal direction and in the vertical direction, so that an at least approximately spherical portion-shaped surface of the end faces 14, 15 (eg Fig. 3) arises. 12/24

isterrecNes piiesSasnt AT 512 391 B1 2013-08-15 [00128] In general, it should be noted that the curves 16, 17 may be provided with a radius of curvature in all variants of the embodiment, which may be rounded by the curve of the rounding. decreases.

Furthermore, in all variants of the noise protection device 1 and the noise protection wall system 20 that between the noise protection devices 1 at the end faces 14, 15 at least partially at least one sealing element, for. B. a Compriband N is arranged.

It is furthermore advantageous if the base element 7 has ground connections for the electrical grounding.

REFERENCE MARKET DESCRIPTION 1 Noise protection device 28 Longitudinal side edge 2 Track system 28a Wall element longitudinal extension 3 Rail track 29 Carrier element 4 Wheel 30 Retaining element 5 Rail vehicle 31 Side surface 6 Distance 32 Side surface 7 Base element 33 Outside edge 8 Wall element 34 Area 9 Surface 35 Area 10 Longitudinal side end surface 36 Contact surface 11 Longitudinal side end surface 37 Connecting surface 12 Base element -Length extension 38 Breakthrough 13 Center area 39 Angle 14 End face 40 Cover plate 15 End face 41 Contact surface 16 Rounding 42 Contact surface 17 Rounding 43 Vertical leg 18 Radius of curvature 44 Support surface 19 Radius of curvature 45 Support surface 20 Noise barrier system 46 Cover element 21 Lifting eye 47 Clamping element 22 End element 48 Connection element 23 End element 49 Leg 24 Connecting element 50 end region 25 coupling element 51 end region 26 coupling element 52 clamping element part 27 longitudinal side edge 53 contact element 13/24

Claims (8)

1. A noise protection device (1) for arrangement on a traffic route comprising at least one wall element (8) with a wall element longitudinal extension (28a), wherein the wall element (8) on at least a base element (7) is arranged, which has a base element longitudinal extent (12) in the direction of the wall element longitudinal extent (28a), wherein the base element (7) has a first end faces (14) and a second end face (15), and both end faces (14, 15) lie opposite each other along the base element longitudinal extension (12), the first end face (14) of the base element (7) having a first rounding (16) and the second end face (15) of the base element (7). are formed with a second rounding (17), wherein the two curves (16, 17) in the direction perpendicular to the base element longitudinal extension (12), characterized in that the first rounding (16) has a con kaven course and the second rounding (17) has a convex course. 2. noise protection device (1) according to claim 1, characterized in that the wall element (8) and the base element (7) are formed integrally with each other 3. noise protection device (1) according to claim 1 or 2, characterized in that the wall element (8) and / or the base element (7) consist of a porous lightweight concrete. 4. noise protection device (1) according to one of claims 1 to 3, characterized in that the wall element (8) has a filling of rock wool or rubber granules. 5. noise protection device (1) according to one of claims 1 to 4, characterized in that on and / or in the wall element (8) a blocking element is arranged against sound waves. 6. noise protection wall system (20) comprising a plurality of longitudinally successively arranged noise protection devices (1), characterized in that the noise protection device (1) are formed according to one of claims 1 to 5. 7. Noise protection wall system (20) according to claim 6, characterized in that the noise protection devices (1) are positively connected with each other. 8. Noise protection wall system (20) according to any one of claims 6 or 7, characterized in that only the first and / or the last noise protection devices (1) of the plurality of successively arranged noise protection devices (1) at least one connecting element (24) or have, with the the noise protection device (1) is connectable to a threshold and / or a rail of a track. For this 10 sheets drawings 14/24